GSK 988T, Руководство пользователя

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Chapter
Ⅱ
G Commands
101
Ⅰ
Programming
Fig. 2-64
Execution process:
①
The tool rapidly traverses to B
1
, and the thread cutting depth is
△
d. The tool only
traverses in X direction when a=0; the tool traverses in X and Z direction and its
direction is the same that of A
→ D when a ≠ 0;
②
The tool cuts threads paralleling with C → D to the intersection of D → E (r ≠ 0: thread
run-out);
③
The tool rapidly traverses to E point in X direction;
④
The tool rapidly traverses to A point in Z direction and the single roughing cycle is
completed;
⑤ The tool rapidly traverses again to tool infeed to B
n
( is the roughing times), the
cutting depth is the bigger value of (
n
×
△
d) ,(
1 n
−
×
△
d+
△
d
min
) , and execute
②
if the cutting depth is less than(k-d) ; if the cutting depth is more than or equal
to(k-d) , the tool infeeds (k-d) to B
f
, and then execute ⑥ to complete the last thread
roughing;
⑥
The tool cuts threads paralleling with C → D to the intersection of D → E (r ≠ 0: thread
run-out);
⑦
X axis rapidly traverses to E point;
⑧
Z axis traverses to A point and the thread roughing cycle is completed to execute the
finishing;
⑨ After the tool rapidly traverses to B(the cutting depth is k and the cutting travel is d),
execute the thread finishing, at last the tool returns to A point and so the thread
finishing cycle is completed;
⑩ If the finishing cycle time is less than m, execute ⑨ to perform the finishing cycle, the
thread cutting depth is k and the cutting travel is 0; if the finishing cycle times is equal
to m, G76 compound thread machining cycle is completed.
Note 1: When G76 is executed, after
【
FEED HOLD
】
is pressed and the system executes this thread cutting
cycle, the system enters pauses state and “Stop” appears in the status column;
Note 2: The single block is executed during the course of thread cutting, the run stops after the system
returns to starting point (one thread cutting cycle is completed);
Note 3: The thread cutting speed stops when the system resets, emergently stops or the drive unti alarms;